Device for exhibiting tools



Aug. 16,1927. ,638,928

EGAIRING DEVICE FOR EXHIBITING TOOLS Filed Jan. 5. 1927 4 Sheets-Sheet 1 INVENTOR.

ATTORNEY.

E. GAIRING DEVICE FOR EXHIBITING TOOLS Filed Jan 05, 1927 4 Sheets-Sheet 2- A TTORNEY.

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Filed Jan. 5, 1927 GAIRING DEVICE FOR EXHIBITING TOOLS 4 Sheets-Sheet 3 \[\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\&

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INVENTOR.

Aug. 16 1927'.

, 1,638,928 E. GAIRING DEV-ICE FOR EXHIBITING TOOLS Filed Jan. 5, 1927 4 Sheets-Sheet 1 INVENTOR.

ATTORNEY.

Patented Aug. 16, 1927.

UNITED STATES PATENT. OFFICE.

EMIL GAIRING, or DETROITLMICHIGAN, ASSIGITOR T0 GAIRING moor. COMPANY, or

DETROIT, MICHIGAN, A CORPORATION OI-MICHIGAN.

nnvrcn nxnrmrma moons.

Application filed January 3, 1927; Serial no. 158,518.,

My invention relates to a device for exhibiting, metal working tools, particularly such that any of the tools may be manually held against rotation while operating for closer inspection without interfering, with the rotation of the remaining tools,or any of the tools may be removed and replaced by tools fitted with longer'or shorter shanks or replaced by other tools as may be desired.

A further object of the invention is to show the wood or metal elements operated upon by the "tool in cross-section, that the cutting end of the tool may be seen in operation with a profile-of the cut made thereby.

Vith the foregoing and other objects in view which will appear as the description proceeds, the invention further resides in the details of construction hereinafter de: scribed and claimed, itbeing understood that changes may be made in the precise embodimentiof the invention herein disclosed without departing from-the spirit of the same. I p

In the drawings accompanying this specification: i

Figure l is a perspective view of the tool supporting stanc, showing a plurality of tools rotating in elements representing the wood or metalbeing machined thereby,

aid elements being in cross-section and shaped to indicate the cut made by the respective tools. 7 v Figure 2 is an end elevation and cross-sectional view, with parts broken away, showing the manner of supporting and driving the respective tools.

Figure 8 is a fragmentary plan and horizontal sectional view through the hollow base, with a prime mover and driving shaft housed therein to actuate the several tools.

Figure' t is a fragmentary sideele'vation and longitudinal sectional view taken on or about line H of Figure 3,. showing the motor, the driving shaft actuated by the motor and the driving connection between the shaft and the spindles for operating the several tools. a i

Figure ,5 is a detailed cross-sectional view taken on or about line 5-5 of Figure 2 showingthe means for looking a supporting pin projecting from the end of one of the tools in drivin connection with one of the spindles rotate by the driving shaft.

Referring now to the letters of reference placed upon the drawings:

A denotes a clanibered rear with a removable plate B whereby access may be gained to the interior of the base, C is an electric motor or other prime mover bolted to the lower floor plate A of the base. C is the projecting end ofthe armature shaft of the motor ]ournalled in the bearings C bolted to the floor plate. 1s apinion keyed to the armature shaft in mesh with agear E carried by a driving shaft F, .journalled infbearing G, bolted to the lower floor plate. Keyed to the driving shaft F and in spaced relation to each other is a plurality of worm-gears H respectively in mesh with a plurality of Worm-(gears I, loosely mounted upon vertically is the tools by a set screw L or other fasten-- ing means, is a rod L extending downwardly through the sleeve vK into the spindle J the lower end of the rod L being flattened as at L that'it may pass a transverse pin J extending through the spindle and whereby a locking engagement is obtained bet-ween the spindIe and pin to provide a driving connection with the tool Z, to rotate the lattern The tools Z'are supported vertically at their upper ends by theadjustable arms M, sleeved upon'u right rods N rising from the chambered ase. The outer end of the arms M are provided with tapering pins M base fitted at the posed spindles J, havingtheir upper ends journalled in sleeves K supported screwed into the end of the armsthe pointed end of the pin entering a tapering axial recess in the end of the tool shank.

M is a set screw in the hub of the adjustable swinging arms M to secure it in fixed relation to the upright posts N when properly adjusted. P denotes one or more wood or metal elements secured to the upper floor plate of the chambered base with sockets corresponding to the cut of the respective tools into which the cutting end of the latter projects. The socket however is shown as in section in order that an observer may see the profile of the cut made by'the tool and the position of the tool in relation to the cut when in operation.

Q is a friction clutch disc bolted to the hub of the worm-gear I, in turn sleeved upon the vertically disposed spindles. This disc on its face is provided with a felt or other washer Q} to insure frictional driving relation between it and a co-operating disc Qf, Secured by a transverse pin Q extending through a slot Q in the spindles. The lower end of the spindles are supported upon blocks R, projecting from a recess in the floor plate which may be adjusted by a screw threaded bolt R extending through the floor.

Screwed upon the end of the spindles are nuts S, which bear against a Washer S and upon adjusting the nut a spring T, sleeved on the spindle and bearing against the hub of the disc Q, may be put under more or less tension. U is an electric light bulb supported in the base plate, concealed by an overlapping flange A" of arc-shaped form which serves also as a reflector to direct the rays of light toward the several tools.

l/V denotes a panel raised in the wall of the base to receive the name of the manufactureror data relating to the tools displayed, or both.

Having indicated the several parts by reference letters, the construction and operation of the device will be readily understood.

The motor having been connected through service wires in the usual way to a source of electrical energy, upon starting the motor the driving shaft F is actuated through the gearing D and E. The driving shaft F, fitted with its several worm-gears in mesh with like gears mounted upon the respective spindles J, serves through the pins K, projecting from the ends of the cutting tools to rotate the tools supported upon the adjustable bracket arms M in a manner simulating the operation of saidtool when in actual working, operation.

The ends of the cutting tools project into sockets in cross-section and show the profile of the cut made by the respective tools when under actual working conditions.

If an observer desires to arrest the rotation of a tool to particularly inspect the same, he may do so by grasping the tool while it is rotating, whereupon the spring clutch Q releases the tool from driving con nection without interfering with the rotation of the other tools. Immediately however upon releasing' the tool the friction clutch Q, again engages, causing the tool to operate as before.

Having thus described my invention what I claim is:

1. In a device of the character described, a supporting frame; a prime mover housed in the supporting frame; a driving shaft actuated by the prime mover; a plurality of gears mounted in spaced relation on the driving shaft; a plurality of vertical spindles suitably j ournalled fitted with gears respectively in mesh with the gears on the driving shaft; a plurality of cutting tools supported in axial alignment with the spindles adapted to rotate therewith but held against longitudinal movement, whereby they may simulate the cutting operation of a plu-" rality of tools under actual working conditions; and means adapted to provide a driving connection between the gears and spindles but which is also adapted upon manually holding any of the tools against rotation to automatically release the corresponding operating spindle of the tool from rotation by the driving shaft, whereby the remaining spindles may continue to operate without interference.

2. In a device of the character described, a supporting frame; a prime mover housed in the supporting frame; a driving shaft actuated by the prime mover; a plurality of gears mounted in spaced relation on the driving shaft; a plurality of vertical spindles suitably ournalled fitted with gears respectively in mesh with the gears on the driving shaft; a plurality of cutting tools rotated by said spindles but held against longitudinal movement, whereby they may simulate the cutting operation of the tool without actually working under operating conditions; a plurality of friction clutches adapted to provide a driving connection between the gears and spindles, whereby upon manually holding any of the tools against rotation the corresponding spindle supportving the tool maybe releasedfrom driving the tool when rotated will simulateits propor cutting operation.

3. In a device of the character described. a supporting frame; a prime mover. housed in the supporting frame; a driving shaft actuated by the prime mover; a plurality of lessees gears keyed in spaced relation to the driving shaft; plui 'alit-y ofisleeves supported in the frame in spaced relation to each other; a plurality of vertically disposed spindles respectively journalled in ithe sleeves; a-plurality of gears loosely mounted upon the spindles ,in mesh withthe, gears of the driving shaft; a plurality of cutting toolsadaptedto be rotated bythe spindles but held against movement, wherebythey may rotate to simulate the operation of the tools without longitudinal movement for performing a cutting operation; a plurality of friction clutches, comprising a fixed and a movable member, one member of each clutch being bolted to the gears sleeved upon the respective spindles, the other member being loosely engaged to the spindles; springs sleeved upon the spindles and bearing against the last named member of the clutch to force it into driving engagement with the first namedmember; and nuts screwed to the end of the .spindles and against the end of the springs toadjust the tension of said springs.

4. In a device of the character described, supporting frame; a prime mover housed in the supporting frame; a driving shaft actuated by the prime mover; a plurality of gears keyed in spaced relation to the driving shaft; a plurality of sleeves supported in the frame in spaced relation to each other; a plurality of vertically disposed spindles respectively journalled in the sleeves; a plurality of cutting tools supported upon the end of the respective sleeves; a plurality of gears loosely mounted upon the spindles in mesh with the gears of the driving shaft; a

plurality f rods respectively extending into each of the tools and secured thereto and extending through the sleeves intothe end of the spindles, said rods being respectively flattened at theend extending into the spindles; and a transverse pin projecting through the spindles and overlapping the flattened portion of the pin to provide a driving connection between the spindle and the tool, whereby said tools may be rotated to simulate a-cutting operation without actually performing such operation.

5. Ina device of the character described, a supporting frame; a prime mover housed in the supporting frame; a driving shaft actuated the prime mover; aiplurality of gears keyed in spaced relation to the driving shaft; a plurality of sleeves supported in the frame in spaced relation to each other; I a plurality of vertically disposed spindles respectively journalled in the sleeves; a plurality of gears loosely mounted upon the spindles in mesh with the gears ofthe driving shaft; a plurality of tools supported upon the end of, the respective sleeves adapted to be rotated without longitudinal movement, whereby they may simu to the gears; and nuts screwed to the end of the spindles adapted to adjust the tension of the springs.

6. In a device of the character described, a supporting frame; a prime mover housed in the supporting frame; a driving shaft actuated by the prime mover; a plurality of gears mounted in spaced relation on the driving shaft; a plurality of vertical spindles suitably journalled and fitted with gears respectively in-mesh with the gears on the driving shaft; a plurality of tools supported by the respective spindles and rotated thereby; a plurality of upstanding rods; a plurality of swinging arms adjustably secured to said rods and fitted at their free end with adjustable pivot pins adapted to engage the end of the tools, said pins being in axial'alignment with the respective spindles; a plurality of friction clutches adapted to provide a driving connection between the gears and spindles whereby upon manually holding any of the tools against rotation to release said tool spindle from rotation by the driving shaft, whereby the remaining spindles with their respective tools may continue to operate without interference. I

7. In a device of the character described, a supporting'frame provided with a chambered base; a prime mover housed in the chambered base; a door for closing an open ing into said base; a driving shaft actuated by the prime mover; a plurality of gears mounted in spacedrelationon the driving shaft; a plurality of vertical spindles suitably journalled and fitted with gears respectively in mesh with the gears onthe driving shaft; a plurality of tools respectively rotated by the spindles; a pluralityof rods rising from the base; a plurality of swinging arms adjustably mounted upon said rods adapted to support the upper end of the tool shanks supported by the spindles; and a plurality of friction" clutches, adapted to provide a driving connection betweenthe gears and spindles whereby upon manually holding any of the tools against rotation the operating spindle of the tool held may be released from rotation that the remaining spindles with their respective tools may continue to operate without interference.

8'. In a device of the character described, a supporting frame; a prime mover housed in ill).

for rotating while resisting longitudinal movement of the cutting tools, whereby the tools when actuated may simulate their operation under actual working conditions Without cutting; and means whereby one or more of said tools 'may be manually held against rotation for inspection without arresting the operation of the remaining tools.

In testimony whereof, I sign'this specification.

' EMIL GAIRING. 

